How to Make a Powerful Mini Freezer: Portable Mini Air Conditioner Cools up to -10ºC

Stop paying for expensive AC! Learn how a $30 shoebox can blast -12°C air using a 100-year-old HVAC trick. ❄️ In this video, I reveal a forgotten 100-year-old HVAC secret that the cooling industry doesn't want you to know. By using a simple shoebox and a frozen brine bottle, you can generate air as cold as -12°C for a fraction of the cost of a traditional $600 wall unit. We dive deep into the science of thermodynamics, exploring why a 2-liter bottle of ice acts as a powerful thermal battery through the Latent Heat of Fusion. I'll show you exactly how to leverage Freezing Point Depression to get your DIY air conditioner significantly colder than standard ice. Whether you're trying to keep your bedroom cool at night or looking for a "sketchy" survival cooling solution for your garage, this DIY project is a total game-changer. Plus, we look at historical cooling methods—from Ancient Persian Yakhchals to 19th-century "Ice Kings"—to see how this technology has been cooling the world for centuries. TIMESTAMPS: 0:00 The $30 Shoebox AC Experiment 1:13 Why cooling is actually a storage problem 2:09 Testing the 2-Liter Thermal Battery 2:42 The Brine Bottle Secret for Sub-Zero Air 4:27 Comparing Central AC to the Brine Cooler 5:17 Saving $700+ a year on electricity 6:00 Ancient Persian Cooling: The Yakhchal 6:44 How Zeer Pots work in the desert heat 7:00 The History of the 1802 Refrigerator 8:46 Why this technology was written out of the rules 9:44 Is this cooling system "illegal"? 10:23 The $30 DIY Cooler Step-by-Step 11:13 Peak vs. Off-Peak Electricity Rates 12:02 My Full DIY Setup & Parts List 13:21 How to manage condensation puddles 14:03 No-Ice Copper Coil Preview SUPPORT MY CHANNEL: 🔗 Subscribe for more Sketchy Survival: https://www.youtube.com/@SketchySurvival101?sub_confirmation=1 📸 Follow my Instagram: https://www.instagram.com/sketchysurvival?igsh=MWdlMXc3NmV0YmI0eA%3D%3D&utm_source=qr 🎵 Catch me on TikTok: https://www.tiktok.com/@sketchysurvival101?_r=1&_t=ZP-928dG4QHYMg #SketchySurvival #DIYAirConditioner #HomemadeAC #SurvivalTips #OffGridCooling #EnergyEfficiency #Thermodynamics #HVACSecrets #BudgetLiving #DIYProject #CheapCooling #SurvivalHacks #ScienceExperiment #LatentHeat #ancienttechnology